Serving spoon



FIG. 1 is a top view of a serving spoon, showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof. 

I claim, the ornamental design for a serving spoon, as shown and described. 